earth
-3. A ball is thrown vertically upwards with a velocity of 49 m/s
(ii) the total time it takes to return to the surface of the earh
Calculate
(i) the maximum height to which it rises,
rolonged from the ton of
tor
Answers
Answered by
0
Hiiiiiiiiiiiiiiiiiiiiiiii
Answered by
0
Answer:
Answer:
Given parameters
Initial velocity of the ball (u) = 49m/s.
The velocity of the ball at maximum height (v) = 0.
g = 9.8m/s2
Let us considered the time taken is t to reach the maximum height H.
Consider a formula,
2gH = v2 – u2
2 × (- 9.8) × H = 0 – (49)2
– 19.6 H = – 2401
H = 122.5 m
Now consider a formula,
v = u + g × t
0 = 49 + (- 9.8) × t
– 49 = – 9.8t
t = 5 sec
(1) The maximum height to ball rises = 122.5 m
(2) The total time ball takes to return to the surface of the earth = 5 + 5 = 10 sec.
Explanation:
Similar questions